/*
 * Copyright (c) 2003, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
 *
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 */

package java.util;

/**
 * Unchecked exception thrown when duplicate flags are provided in the format
 * specifier.
 *
 * <p> Unless otherwise specified, passing a <tt>null</tt> argument to any
 * method or constructor in this class will cause a {@link
 * NullPointerException} to be thrown.
 *
 * @since 1.5
 */
public class DuplicateFormatFlagsException extends IllegalFormatException {

  private static final long serialVersionUID = 18890531L;

  private String flags;

  /**
   * Constructs an instance of this class with the specified flags.
   *
   * @param f The set of format flags which contain a duplicate flag.
   */
  public DuplicateFormatFlagsException(String f) {
    if (f == null) {
      throw new NullPointerException();
    }
    this.flags = f;
  }

  /**
   * Returns the set of flags which contains a duplicate flag.
   *
   * @return The flags
   */
  public String getFlags() {
    return flags;
  }

  public String getMessage() {
    return String.format("Flags = '%s'", flags);
  }
}
